<template>
  <div class="top">
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>
        <a href="/Classification">课程管理</a>
      </el-breadcrumb-item>
      <el-breadcrumb-item>
        <a href="/Evaluation">评价管理</a>
      </el-breadcrumb-item>
    </el-breadcrumb>
  </div>

  <div class="middel">
    <el-form :inline="true" :model="queryInfo" class="demo-form-inline">
      <el-form-item label="学员昵称">
        <el-input v-model="queryInfo.username" placeholder="请输入学员昵称" clearable />
      </el-form-item>
      <el-form-item label="课程名称">
        <el-input v-model="queryInfo.courseName" placeholder="请输入课程名称" clearable />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="search">搜索</el-button>
      </el-form-item>
      <el-form-item>
        <el-button type="danger" @click="batchDelete" :disabled="multipleSelection.length === 0">
          批量删除
        </el-button>
      </el-form-item>
    </el-form>
  </div>

  <div class="content">
    <el-table
      ref="multipleTableRef"
      :data="tableData"
      row-key="id"
      style="width: 100%"
      @selection-change="handleSelectionChange"
      :loading="loading"
      border
      stripe
      class="category-table"
    >
      <el-table-column type="selection" width="55" />
      <el-table-column prop="id" label="ID" width="80" align="center" />
      <el-table-column prop="username" label="学员昵称" min-width="120" align="center" show-overflow-tooltip />
      <el-table-column prop="evaluateContent" label="评价内容" min-width="200" align="center" show-overflow-tooltip />
      <el-table-column prop="score" label="评分" width="80" align="center" />
      <el-table-column prop="evaluateTime" label="评价时间" min-width="150" align="center" show-overflow-tooltip />
      <el-table-column prop="courseName" label="课程名称" min-width="120" align="center" show-overflow-tooltip />
      <el-table-column label="操作" width="240" align="center">
        <template #default="scope">
          <div style="display: flex; justify-content: center; gap: 16px;">
            <el-button size="small" type="primary" @click="openDialog('edit', scope.row )" disabled  >编辑</el-button>
            <el-button size="small" type="danger" @click="deleteEvaluation(scope.row.id)">删除</el-button>
          </div>
        </template>
      </el-table-column>
    </el-table>

    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pageNum"
      :page-sizes="[5, 10, 15, 20]"
      :page-size="queryInfo.pageSize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total"
      style="margin-top: 20px"
    />
  </div>

  <el-dialog v-model="dialogVisible" :title="dialogTitle" width="500">
    <el-form :model="form" label-width="110px" class="dialog-form">
      <el-form-item label="学员昵称" required>
        <el-input v-model="form.username" autocomplete="off" maxlength="30" show-word-limit />
      </el-form-item>
      <el-form-item label="评价内容" required>
        <el-input v-model="form.evaluateContent" autocomplete="off" type="textarea" maxlength="200" show-word-limit />
      </el-form-item>
      <el-form-item label="评分" required>
        <el-input v-model="form.score" autocomplete="off" type="number" min="0" max="5" />
      </el-form-item>
      <el-form-item label="评价时间" required>
        <el-input v-model="form.evaluateTime" autocomplete="off" maxlength="30" />
      </el-form-item>
      <el-form-item label="课程名称" required>
        <el-input v-model="form.courseName" autocomplete="off" maxlength="50" show-word-limit />
      </el-form-item>
    </el-form>
    <template #footer>
      <div class="dialog-footer">
        <el-button @click="dialogVisible = false">取消</el-button>
        <el-button type="primary" @click="submitForm">确定</el-button>
      </div>
    </template>
  </el-dialog>
</template>

<script lang="ts" setup>
import { getCurrentInstance, onMounted, reactive, ref } from 'vue';
import { ElMessage, ElMessageBox, type TableInstance } from 'element-plus';

// 查询参数
const queryInfo = reactive({
  id: null, // 评价ID
  username: '', // 用户名称
  courseName: '', // 课程名称
  pageSize: 10, // 每页大小
  pageNum: 1, // 当前页码
});

// 表格数据和分页
const tableData = ref([]);
const total = ref(0);
const loading = ref(false);

// 选择相关
const multipleTableRef = ref<TableInstance>();
const multipleSelection = ref<any[]>([]);

const axios = getCurrentInstance().appContext.config.globalProperties.axios;

// 弹窗表单
const dialogVisible = ref(false);
const dialogTitle = ref('新增评价');
const form = reactive({
  id: null,
  username: '',
  courseName: '',
  evaluateContent: '',
  score: null,
  evaluateTime: null
});
let dialogMode = 'add';

// 查询列表
const queryDataList = () => {
  loading.value = true;
  axios.get('courseEvaluate/all', {
    params: queryInfo
  })
    .then((response) => {
      if (response && response.code === 200) {
        tableData.value = response.data.list || [];
        console.log(tableData.value);
        total.value = response.data.total || 0;
      } else {
        ElMessage.error(response.message || '查询失败');
      }
    })
    .catch(() => {
      ElMessage.error('网络请求错误，请检查网络连接或服务器状态');
    })
    .finally(() => {
      loading.value = false;
    });
};

onMounted(() => {
  queryDataList();
});

// 搜索
const search = () => {
  queryInfo.pageNum = 1;
  queryDataList();
};

// 分页
const handleSizeChange = (size: number) => {
  queryInfo.pageSize = size;
  queryDataList();
};
const handleCurrentChange = (num: number) => {
  queryInfo.pageNum = num;
  queryDataList();
};

// 选择
const handleSelectionChange = (val: any[]) => {
  multipleSelection.value = val;
};

// 打开弹窗
function openDialog(mode: 'add' | 'edit', row?: any) {
  dialogMode = mode;
  if (mode === 'add') {
    dialogTitle.value = '新增评价';
    form.id = '';
    form.nickname = '';
    form.evaluationContent = '';
    form.evaluationScore = '';
    form.evaluationTime = '';
    form.courseName = '';
  } else if (mode === 'edit' && row) {
    dialogTitle.value = '编辑评价';
    form.id = row.id;
    form.nickname = row.nickname;
    form.evaluationContent = row.evaluationContent;
    form.evaluationScore = row.evaluationScore;
    form.evaluationTime = row.evaluationTime;
    form.courseName = row.courseName;
  }
  dialogVisible.value = true;
}

// 新增/编辑提交
function submitForm() {
  if (!form.nickname.trim()) {
    ElMessage.warning('请输入学员昵称');
    return;
  }
  if (!form.evaluationContent.trim()) {
    ElMessage.warning('请输入评价内容');
    return;
  }
  if (!form.evaluationScore) {
    ElMessage.warning('请输入评分');
    return;
  }
  if (!form.evaluationTime) {
    ElMessage.warning('请输入评价时间');
    return;
  }
  if (!form.courseName.trim()) {
    ElMessage.warning('请输入课程名称');
    return;
  }
  if (dialogMode === 'add') {
    axios.post('courseEvaluation', {
      nickname: form.nickname,
      evaluationContent: form.evaluationContent,
      evaluationScore: form.evaluationScore,
      evaluationTime: form.evaluationTime,
      courseName: form.courseName
    }).then((resp: any) => {
      if (resp.code === 200) {
        ElMessage.success('新增成功');
        dialogVisible.value = false;
        queryDataList();
      } else {
        ElMessage.error(resp.message || '新增失败');
      }
    });
  } else if (dialogMode === 'edit') {
    axios.put('courseEvaluation', {
      id: form.id,
      nickname: form.nickname,
      evaluationContent: form.evaluationContent,
      evaluationScore: form.evaluationScore,
      evaluationTime: form.evaluationTime,
      courseName: form.courseName
    }).then((resp: any) => {
      if (resp.code === 200) {
        ElMessage.success('编辑成功');
        dialogVisible.value = false;
        queryDataList();
      } else {
        ElMessage.error(resp.message || '编辑失败');
      }
    });
  }
}

// 删除
function deleteEvaluation(id: number) {
  ElMessageBox.confirm('确定要删除该评价吗？', '提示', {
    type: 'warning'
  }).then(() => {
    axios.delete(`courseEvaluate/${id}`).then((resp: any) => {
      if (resp.code === 200) {
        ElMessage.success('删除成功');
        queryDataList();
      } else {
        ElMessage.error(resp.message || '删除失败');
      }
    });
  });
}

// 批量删除
function batchDelete() {
  if (multipleSelection.value.length === 0) {
    ElMessage.warning('请选择要删除的评价');
    return;
  }
  ElMessageBox.confirm('确定要批量删除选中的评价吗？', '提示', {
    type: 'warning'
  }).then(() => {
    // 1. 将选中的id转换为逗号分隔的字符串（键值对形式传递多值的常见方式）
    const ids = multipleSelection.value.map((item: any) => item.id).join(',');
    // 2. 通过 params 传递键值对参数（会拼接在URL后，如 ?ids=1,2,3）
    axios.delete('courseEvaluate', {
      params: { ids: ids }  // 键值对形式：{ key: value }
    }).then((resp: any) => {
      if (resp.code === 200) {
        ElMessage.success('批量删除成功');
        queryDataList();
      } else {
        ElMessage.error(resp.message || '批量删除失败');
      }
    });
  });
}
</script>

<style scoped>
.top {
  background-color: #f8f9fa;
  padding: 12px 20px;
  margin-bottom: 15px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}
.el-breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
}
.middel {
  background: #fff;
  padding: 20px;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.demo-form-inline {
  display: flex;
  align-items: center;
  gap: 15px;
}
.demo-form-inline .el-form-item {
  margin-right: 20px;
}
.demo-form-inline .el-input,
.demo-form-inline .el-select {
  width: 220px;
}
.el-button {
  min-width: 100px;
}
.el-button + .el-button {
  margin-left: 10px;
}
.content {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.category-table {
  background: #fff;
  border-radius: 8px;
}
.el-table {
  margin-bottom: 20px;
}
.el-table__header-wrapper {
  border-radius: 6px 6px 0 0;
}
.el-table__body-wrapper {
  border-radius: 0 0 6px 6px;
}
.el-pagination {
  display: flex;
  justify-content: flex-end;
  margin-top: 30px !important;
}
.dialog-form {
  padding-top: 10px;
}
</style>